脑病

例句：

1. 1. He was diagnosedwith a brain tumor.
   他被诊断出患有脑肿瘤。
2. 2. Thepatient's condition worsened after the surgery.
   手术后，患者的病情恶化了。
3. 3. Braininjuries can lead to long-term cognitive impairment.
   大脑损伤可能导致长期的认知障碍。